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# -*- coding: utf-8 -*-"""Created on Tue May 14 15:37:59 2019@author: Ai酱"""class Mattrix: val = [] shape=(0,) def __init__(self,val): if type(val)==list: self.val...

(-2)**0.5和sqrt(-2)是不同的，前者是复数后者是会报错的。print((-2)**0.5)#输出:(8.659560562354934e-17+1.4142135623730951j)import mathmath.sqrt(-2)#报错ValueError: math domain error...